Origin, structure and exposure history of a wave-cut platform more than 1 Ma in age at the coast of northern Spain: A multiple cosmogenic nuclide approach

Álvarez-Marrón, Joaquina; Hetzel, Ralf; Niedermann, Samuel; Menéndez, Rosa; Marquínez, J.

doi:10.1016/j.geomorph.2007.03.005

Cited by 77 publications

(36 citation statements)

References 42 publications

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“…When there is a discrepancy between our data and the published source, it appears that our estimates are generally younger than published ages. This is the case in northern Spain (Asturias) where our extrapolation gives an early Pleistocene age for the upper rasa at 225 m above mean sea level, whereas 1) it is described as Miocene (Mary, 1983), and 2) a Lower Pleistocene rasa was identified below the upper one and dated to 1-2 Ma by cosmogenic methods (Alvarez-Marrón et al, 2008) (Fig. 14).…”

Section: The Upper Part Of the Sequences: Lower Pleistocene-eocenementioning

confidence: 78%

“…Their formation was promoted before and during early Pleistocene times, during periods of faster oscillations and lower amplitudes in sea-level fluctuations than since the Middle Pleistocene. See examples from Spain described by Alvarez-Marrón et al (2008) and western Scotland by Dawson et al (2013). Strandflats are sequences of strandlines formed in glacial or periglacial environments (Guilcher et al, 1986; this study).…”

Section: The "Sea-level Barcode"mentioning

confidence: 90%

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Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Pedoja

Husson

Johnson

et al. 2014

Earth-Science Reviews

166

195

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. Many coasts feature sequences of Quaternary and Neogene shorelines that are shaped by a combination of sealevel oscillations and tectonics. We compiled a global synthesis of sea-level changes for the following highstands: MIS 1, MIS 3, MIS 5e and MIS 11. Also, we date the apparent onset of sequences of paleoshorelines either from published data or tentatively extrapolating an age for the uppermost, purported oldest shoreline in each sequence. Including the most documented MIS 5e benchmark, we identify 926 sequences out of which 185 also feature Holocene shorelines. Six areas are identified where elevations of the MIS 3 shorelines are known, and 31 feature elevation data for MIS 11 shorelines. Genetic relationships to regional geodynamics are further explored based on the elevations of the MIS 5e benchmark. Mean apparent uplift rates range from 0.01 ± 0.01 mm/yr (hotspots) to 1.47 ± 0.08 mm/yr (continental collision). Passive margins appear as ubiquitously uplifting, while tectonic segmentation is more important on active margins. From the literature and our extrapolations, we infer ages for the onset of formation for~180 coastal sequences. Sea level fingerprinting on coastal sequences started at least during mid Miocene and locally as early as Eocene. Whether due to the changes in the bulk volume of seawater or to the temporal variations in the shape of ocean basins, estimates of eustasy fail to explain the magnitude of the apparent sea level drop. Thus, vertical ground motion is invoked, and we interpret the longlasting development of those paleoshore sequences as the imprint of glacial cycles on globally uplifted margins in response to continental compression. The geomorphological expression of the sequences matches the amplitude and frequency of glacial cyclicity. From middle Pleistocene to present-day, moderately fast (100,000 yrs) oscillating sea levels favor the development of well identified strandlines that are distinct from one another. Pliocene and Lower Pleistocene strandlines associated with faster cyclicity (40,000 yrs) are more compact and easily merge into rasas, whereas older Cenozoic low-frequency eustatic changes generally led to widespread flat-lying coastal plains.

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Section: The Upper Part Of the Sequences: Lower Pleistocene-eocenementioning

confidence: 78%

Section: The "Sea-level Barcode"mentioning

confidence: 90%

Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Pedoja

Husson

Johnson

et al. 2014

Earth-Science Reviews

166

195

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show abstract

“…However, it is sometimes laterally connected to marine terrace sequences like in Chala (Peru, Goy et al, 1992;Saillard, 2008) (Figure 2A). Similar features have been described along the northern Spanish coast where it could be 1-2 Ma-old (Alvarez-Marron et al, 2008). There, the term "rasa" was used to define a planation surface due to repeated highstands superimposed on an…”

Section: Introductionmentioning

confidence: 89%

Renewed uplift of the Central Andes Forearc revealed by coastal evolution during the Quaternary

Regard

Saillard

Martinod

et al. 2010

Earth and Planetary Science Letters

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Most of the Pacific coast of the Central Andes, between 15°S and 30°S, displays a wide (a couple of kilometres) planar feature, gently dipping oceanwards and backed by a cliff. This morphology, usually of marine orgin, is called rasa, and argues for a recent and spatially continuous uplift of the margin over the 1,500-km-long coastal region we describe. The cliff foot is found at a similar elevation (~110 m amsl) all over the studied area, with the exception of peninsulas such as the Mejillones Peninsula. The compilation of published chronological data and the extrapolation of re-appraised uplift rates provide evidence for a common cliff foot age of around 400 ka (i.e., Marine Isotopic Stage MIS 11). This, together with other geological constraints, indicates a Quaternary renewal of uplift in the Central Andes forearc after a late Pliocene quiescence or subsidence.

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“…Por último, las costas atlánticas del litoral gallego y cantábrico se encuentran caracterizadas por el desarrollo de "rías" (antiguos valles fluviales sumergidos) y estuarios separados por acantilados rocosos, que en muchas ocasiones desarrollan secuencias escalonadas de "rasas" (Pagés-Valcarlos, 2000;Flor y Flor Blanco, 2006). Las rasas se interpretan como plataformas de abrasión costeras, elevadas y colgadas sobre el nivel del mar desde unas pocas decenas hasta algunas centenas de metros (Álvarez-Marrón et al, 2008). Seguramente se encuentran elevadas como consecuencia del proceso de descarga isostática erosiva del conjunto de la Cordillera Cantábrica, a cuyo pie se adosan a modo de piedemonte litoral a menudo cubierto por una fina capa de depósitos aluviales o eólicos.…”

Section: El Periodo Cuaternario En La Península Y La Instalación De Lunclassified

El Periodo Cuaternario: La Historia Geológica de la Prehistoria

Barroso

Bardajı́

Roquero

et al. 2017

CyG

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ResumenEste trabajo presenta una síntesis de la estratigrafía y geocronología del Periodo Cuaternario tras la actualización cronoestratigráfica aprobada por la Comisión Internacional de Estratigrafía (ICS-IUGS) y la Unión Internacional para el Estudio del Cuaternario (INQUA). Se aportan los datos más recientes sobre estratigrafía, cronología y paleoclimatología de este periodo en la Península Ibérica, así como los esquemas o fuentes bibliográficas más clásicas. Se da una visión general de la Prehistoria enmarcándola dentro de los episodios o eventos climáticos más característicos del Pleistoceno final, Holoceno y Antropoceno. Esta síntesis pretende ser una guía resumida de la cronología cuaternaria para todos aquellos investigadores que, trabajando en el Periodo Cuaternario, no poseen una formación científica adecuada al respecto.

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Origin, structure and exposure history of a wave-cut platform more than 1 Ma in age at the coast of northern Spain: A multiple cosmogenic nuclide approach

Cited by 77 publications

References 42 publications

Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Coastal staircase sequences reflecting sea-level oscillations and tectonic uplift during the Quaternary and Neogene

Renewed uplift of the Central Andes Forearc revealed by coastal evolution during the Quaternary

El Periodo Cuaternario: La Historia Geológica de la Prehistoria

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